Bagging-machine.



'i A. M. BATES.

BAGGING MACHINE.

APPLICATION FILED JAN. 6, 1911,

1,071,385, Patented Aug. 26, 1913.

z SHEETS-SHEET 1.

A. M. BATES.

BAGGNG MACHINE.

APPLICATION FILED 111116, 1911.

Patented Aug. 26, 1913 2 SHEETS-SHEET 2.

JK @si UNITED STATES PATENT oEEioE.

ADELMEB.- M. BATES, or' CHICAGO, ILLINIS f pasarme-MACHINE.

` To all whom-t may concern.'

Be it lmown that I, ADELMER M. BATES, a citizen of the United States, residing at Chicago, inthe county of Cook and State of Illinois, have invented a certain new and useful Improvement in Bagging-Machines, of which the following is a Specification.

My invention relates to improvements in bag filling machines `and is illustrated in' one form. in the accompanying drawing,-

wherein Figure 'l is a front elevation with parts broken away; Fig. 2 is a view in part secvti'on along the'line 2-2 of Fig. 1;v Fig. 3,

pro eller pocket' B1 l .in partial register.

similar to Figpwith bag vin slightly different position; Fig. 4, a wiring diagram; Fig. 5, a Idetail of one of the knife edges;

'Fig'. .6, .a detail 'of the support 4for-the auX- iliary weight; Fig. 7 a diagram vsection showing thefeeding pipe and feeding throat Like parts are indicated by like letters in all the figures. f l The endframesA are connected at their' bottom by means of the channels A1, A2 and at their tops by means of the channels A3` A1. The supplypa'ssage B communicates at vits bottom withvthe propeller pocket B1 and may be separated therefrom byl means of the slide B2. The propeller B2 4which maybe of any suitable form is located within the in opposition to the fee ing throat B1.V The scale beam D is mounted upon the knife edge D1 upon the channel A1 and carries. near' one end the weight D2 mounted upon the knife edge D3 and has at the otherend the'knife edge D2 carried upon the rod D5 and having the upwardly `extending Vapron DE. y The A-frame E which is made .up of the side members E1 and is mountedupon-the knife edge D2 by means ofthe agate bearings E2 having the conical points E3 to engage the apron DG at i .the apex of the knife edge,` is connected at its upper end with the channel Aby means of the adjustable link E1,which is pivoted upon the channel A2 at a point below itsA connection to the A-frame when the scale beam is in its unloaded position. Theside pieces E1 are connected by means of the brace E5 and have below the brace E5 the web members E6 which carry the yoke E1. The plate E8 mounted upon the yoke E1 carries the feeding tube E9 which is adapted to register with the feeding throat B1f,which, in turn, communicates with the propeller Specification of Letters Patent.

'Patented Aug. 26,1913.

Appneation sied January@ 191i. serial No. 601,083.

pocket. B1. The plate E8 has the flat vertical surf-ace` E11 to engage a corresponding flat vert-ical surface about the feeding throat B1 and has the surface E12 at an angle with the surface E11. T he lug E13 provides for a continuation of the flat surface about the feeding throat, thus maintaining the feeding tube closed at all points where it is not in ,register with thefeeding throat. rl`he semicircular yoke F connects the members E1 of the A-frame near the knife edges and supports 'the' downwardly depending bag protecting apron F1. The scale beam D has fat the other is connected by means of the i rod: H5 with the solenoid H1. "spring J is mounted upon 'and insulated 1 The Contact from the cliannel A2 and is adapted to.be engaged bythe projection`r J1 upon the end "of the scale beam when .the scale is in its l-loaded position. The rod K mounted upon the brackets K1 upon the en'd frame A carJ ries slid'ably mounted thereon the collar K2 having the downwardly depending lug K3 to which is rotatably held bymeans of the cap screw K4 the arm` K5., The rod- KG is adjustablyheld by means of the set screw K7 in the=lug K upon the arm K1', and carries at its bottom the cross piece Kg to which are attached the chainsv K10 to support the auxiliary weight-"K11 The weight K11 has the angular groove K12 to engage the angular surface of the weight D2.

It will be evident that while I have shown4 1n my drawings an operative device, still i many changes may be made both in size, shape and arrangement of the parts andiI wish therefore, that the presentation be regarded as in a sense diagrammatical and that I be not confined to the particular arrangement and design of the machine Aas here shown and described.

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`llaa The use andl operation of my invention are as follows.: In 4the old type of bag filling machines where the break between the tilling tube and filling throat was placed diag- {mainder of the material.

onally, the pressure of the discharged material tended to force the bag downwardly,

thus interfering with the accurate weighing of the contents of the bag.` In my device I -provide the break on a line perpendicular to the travel of the material, thereby .doing away with any ,such downward pressure. The bag is supported upon a scale beam and when filled descends by its own weight moving the filling tube out of registration with the filling throat. There isa duplex cut-off for the supply, the first operation of which is that associated with the bag, aplate in connection with the filling tube descending and closing the discharge throat. The secondr operation is that associated with the discharge throat itself, and this cut-off is preferably diagonal so as to be as close as possible to the blades of the feeding device during their movement, thus preventing plugging of the material into the discharge tube. This cut-0E is needed to prevent -the premature dis- `charge through the tube when the fillingy tube has returned to its filling position.

kThis second cut-off is moved by a lever andY the contents of the bag it is necessary tl iat the last few pounds be4 introduced in a much more gradual manner than the re- In order to accomplish this, I provide two weights, one

larger than the other, the larger supported i ate the limits of the motion of the scale.' The result of. this is,l that when .the big` weight is overbalanced, the scale being dropped, the feeding tube and feeding throat are moved until but a small part of' the feeding' tube is in register with the feeding throat. This decreases very materially the size of the stream and as a result the speed of filling. The process then continues with the more gradualfillin until the total weight is again overbalance' when the bag drops and the feeding throat is entirely closed. The bag is supported upon a frame which is supported by knife edges upon the weighing arm and connected by means of a link to the mechanism above the bag. This link is so located that as the bag and frame descend, the feeding tube is thrown slightly outward from the feeding throat, thus permitting any material which may be caught between the feeding throat and feeding tube to drop out, and thus prevent clogging.

I provide mounted upon the scale beam 'a plurality of knife edges having at one side an apron perpendicular to the knife edge. I also provide upon the frame, bearing surfaces adapted to engage and ride upon the knife edges. These bearing surfaces have a, conical end, the apex of which coincides with the bearing line upon the knife edge. This apex contacts the apron upon the knife edge and prevents lateral movement of the knife edge and bearing, and since this apex is atA the center of rotation between the knife edge and'bearing no appreciable friction results.

I claim:

l. A bag filling machine having a feeding throat and a filling tube separate from but in substantial registry with each other, and means responsive to the weight of material in the bag for laterally displacing the filling tube to vary the supply lof material passing through it.

' 2. A bag lling machine having a feeding throat and a filling tube separate from but in substantial registry with each other,

and means responsive to the weight of material. in the bag for laterally displacing the filling tube toI vary the supply 'of material passing through it, together with means for cutting off the supply of `material.

3. A bag filling machine having a4 feeding throat and filling tub'e, and a plurality of independent means each adapted to cut off the supply, said means responsive to the weight of material in the bag.v

4. A bag filling machine having a feeding throat and a filling tube and means for Vcuttingofl1 the supply of material associated with` the filling tube directly responsive to the weight of the material in the bag, together with electrically operated means associated with the feeding throat responsive to the movement of the bag for cutting off the supply of material.

5. A vbag filling machine having a feeding'throat and a filling tube laterally movable responsive to the weight of the mateiial inthe bag,and means responsive to said lateral movement for varying the supply of material to the bag.

, 6. A bag filling machine having a feeding throat and a filling tube laterally movable responsive to the weight of the material in the bag, and means responsive to said lateral movement for varying the supply of material tothe bag together with means responsive to said movement for cutting off the supply of material.

7. A bag filling machine having a feeding throat and a filling tube laterally movable responsive to the weight of the material in the bag, and means responsive to said lateral movement forl varying the supply of mate` rial to the bag together with means responsive to said movementy for cutting ofi' the supply of material and auxiliary electrically operated means 'for positively cutting ofi' the supply of material.

8. A bag lling machine having a bag` supporting frame and a scale beam, a knife edge upon said scale beam having an up- Wardly projecting apron at one end of the apex of the knife and a bearing groove upon the frame adapted to engage said knife edge.

9. A bag filling machine having a bag supporting frame and a scale beam, a knife edge upon said scale beam having an upwardly projecting apron at one end of the apex of the knife and a bearing groove upon the frame adapted to engagesaid knife edge, and a conical surface adjacent one end of said bearing groove having its point in a line with the center ofV said groove.

10. The combination in a bag filling machine of a feeding tube adapted to enter the bag 'and means for varying the effective area thereof at some point between the bel ginning and ending of the feeding operation, said means responsive to the Weight of material in the bag.

11. A bag filling machine having a filling tube adapted to enter theV bag, means for varying the effective area thereof during feeding and a Weighing mechanism and means for varying the balance-Weightthereof.

12. A bag filling machine having a filling tube adapted to enter the bag, means for varying the effective area thereof during feeding and a Weighing mechanism' and means for varyingthe balance-Weight thereof, the variation in the eifective area of the feeding tube being responsive to the variation in the balance-Weight.

13. A bag filling machine, having a filling tube and a filling throat with Which it registers, and means for simultaneously moving vthe filling tube longitudinally toward and ing throat and a filling tube, and means4 for laterally moving said tube out of aline'ment with said throat together with means for.V

longitudinally displacing said tube, all' such means responsive to the variation-jin lthe Weight.

16. A bag filling machine comprising an A-frame, a feeding throat, a filling` tube in said frame in engagement Withsaid throat, of a link connection betweenth'el top of said A-frame and the filling machine, said-link pvotedupon the filling machineat a point below its connection to theA'-frame, such means responsive to the variation in the Weight.

17 A bag filling machina-havinga lling tube andv a filling throat With 'Whichitregisters and means for simultaneouslymoving the filling tube 'longitudinally toward and from the throat and bodily across the mouth of the throat. i y 1 1 ADELMER M. BATES. Witnesses: I

MINNIE M. LINDENAU, Scrum B. 

